.el_popover {
    display:none;
    position: absolute;
    background: #fff;
    min-width: 150px;
    border-radius: 4px;
    border: 1px solid #ebeef5;
    padding: 12px;
    z-index: 2000;
    color: #606266;
    line-height: 1.4;
    text-align: justify;
    font-size: 14px;
    box-shadow: 0 2px 12px 0 rgb(0 0 0 / 10%);
    word-break: break-all;
    padding: 18px 20px;
    box-sizing: border-box;
}

.el_popover_title {
    color: #303133;
    font-size: 16px;
    line-height: 1;
    margin-bottom: 12px;
}

.el_popover .popper_arrow {
    position: absolute;
    width: 0;
    height: 0;
    border: 6px solid #fff;
    border-color: transparent;
    
}
.el_popover.el_popover_top .popper_arrow {
    top: 100%;
    left: 50px;
    border-top-color: #fff;
}
.el_popover.el_popover_left .popper_arrow {
    border-left-color: #fff;
    top: 50px;
    left: 100%;
}
.el_popover.el_popover_right .popper_arrow {
    border-right-color: #fff;
    top: 50px;
    right: 100%;
}
.el_popover.el_popover_bottom .popper_arrow {
    border-bottom-color: #fff;
    bottom: 100%;
    left: 50px;
}